What type mirror is this?

concave

plane

convex

parabolic

Ok so co(g) is not pronoused that. the only clue is that youpronouse it the oppisote way. 

The mole ratio of hydrogen to ammonia is 3: 2.

Those are different gas lawshere is a brief description of themcharles's law states that volume and temperature are directly proportional to each other as long as pressure is held constant.  boyle's law asserts that pressure and volume are inversely proportional to each other at fixed temperature.gay-lussac's law introduces a direct proportionality between temperature and pressure as long as it is at a constant volume.    source: